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From "Markus Weimer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (REEF-1820) Allow specify node names when requesting evaluators
Date Mon, 10 Jul 2017 20:04:00 GMT

    [ https://issues.apache.org/jira/browse/REEF-1820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16081000#comment-16081000
] 

Markus Weimer commented on REEF-1820:
-------------------------------------

Ah, yes, sorry! Node names should work on all RMs. Do we also need to simulate them on the
local runtime?

> Allow specify node names when requesting evaluators
> ---------------------------------------------------
>
>                 Key: REEF-1820
>                 URL: https://issues.apache.org/jira/browse/REEF-1820
>             Project: REEF
>          Issue Type: Task
>          Components: REEF, REEF Bridge
>            Reporter: Julia
>            Assignee: Achuth Raghavendra
>            Priority: Minor
>
> Currently, when clients request for evaluators, .Net REEF doesn't not expose node names
in IEvaluatorRequest. It default to null node names therefore it is up to YARN to assign available
containers. 
> Some of the REEF clients would like to specify node names when requesting for evaluators.
We should allow the preferred node names to be specified through IEvaluatorRequest and pass
it to Java EvaluatorRequestorBridge. 
> As resources requested may not be available for various reasons, we should also allow
the client to specify RelaxLocality in the IEvaluatorRequest. Setting RelaxLocality to true
would allow YARN to return another container if the specified one is not available. 



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